Code Number: 6H35.62
Demo Title: Liquid Crystal Displays
Condition: Excellent
Principle: Polarization of Light & Birefringence
Area of Study: Optics, E & M
Equipment:
Overhead Polarizers (2) and Liquid Crystal Displays.
Procedure:
See also: 1R50.30 in Mechanics and 4A10.50 in Heat and Fluids.
Use a Polarizer to show that a liquid crystal display is polarized.
References:
- Hasan Fakhruddin, "Some Activities with Polarized Light from a Laptop LCD Screen", TPT, Vol. 46, #4, April 2008, p. 229.
- Matt Evans, "Polarizing Filters Aren't Supposed To Do THAT!", TPT, Vol. 46, #1, Jan. 2008, p. 59.
- Gerd Kortemeyer, "A Polarizer Demo Using LCD's", TPT, Vol. 46, #1, Jan. 2008, p. 58.
- Dave Van Domelen, "Teaching Light Polarization with Cell Phones", TPT, Vol. 45, #8, Nov. 2007, p. 469.
- Paul Changnon, "Animated Displays IV: Linear Polarization", TPT, Vol. 31, #8, Nov. 1993, p. 489, also Resource Letter TLC-1 Teaching Light and Color, Demonstration Experiments Resource Articles.
- W. K. Koo, C. S. Chong, and Ben K. Merican, "Polarized Light, Polaroid and Your Digital Watch", AJP, Vol. 63, #2, Feb. 1995, p. 184.
- John J. Wright, "Optics Experiments with Nematic Liquid Crystals", AJP, Vol. 41, #2, Feb. 1973, p. 270.
- Richard J. Fitzgerald, "The Nature and Art of Liquid Crystals", Physics Today, Vol. 71, #10, Oct. 2018, p. 76.
- "Graphene Visualized", Physics Today, Vol. 70, #4, Apr. 2017, p. 72.
- Bill Franklin, "Optically Active Materials", Teaching about Color & Color Vision, 1996, p. 9D-1.
- H. Richard Crane, "Liquid Crystal Displays: Watches, Calculators, and (Soon) Cars", How Thing Work (1983 - 1995), p. 4.